
MAGITRONICS

A-B341H

Processor         80386DX
Processor Speed   40MHz
Chip Set          UMC
Max. Onboard DRAM 32MB
SRAM Cache        32/64/128/256KB
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80387/3167

[Image]

                                CONNECTIONS

  Function                  Location   Function                  Location

  External battery            J1       Reset switch                J4

  Turbo LED                   J2       Speaker                     J5

  Turbo switch                J3       Power LED & keylock         J6

                        USER CONFIGURABLE SETTINGS

                Function                    Location          Setting

     Battery select internal                  W1              closed

      Battery select external                  W1               open

     Monitor type select color                W2              closed

      Monitor type select monochrome           W2               open

     NPU disabled                             W4               open

      NPU enabled                              W4              closed

     CMOS memory normal operation             W20              open

      CMOS memory clear                        W20             closed

  Note:Location of jumper W2 is unknown.

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      5MB         (4) 256K x 9    (4) 1M x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      20MB        (4) 1M x 9      (4) 4M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

                    SRAM CONFIGURATION

     Size          Cache         Location         TAG

     32KB        (4) 8K x 8       Bank 0      (1) 8K x 8

     64KB        (8) 8K x 8    Banks 0 & 1    (1) 8K x 8

     128KB      (4) 32K x 8       Bank 0      (1) 8K x 8

     256KB      (8) 32K x 8    Banks 0 & 1    (1) 32K x 8

                         SRAM JUMPER CONFIGURATION

  Size     W8      W9     W10      W11     W12     W13      W14     W15

  32KB     1 &     1 &    1 & 2   1 & 2   2 & 3    1 & 2   1 & 2    open
            2      2

  64KB     2 &     1 &    1 & 2   2 & 3   1 & 2    1 & 2   1 & 2    open
            3      2

  128KB    2 &     2 &    2 & 3   2 & 3   2 & 3    1 & 2   1 & 2   1 & 2
            3      3

  256KB    2 &     2 &    2 & 3   2 & 3   1 & 2    2 & 3   2 & 3   2 & 3
            3      3

  Note:Pins designated should be in the closed position.

